19425285

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 38338560

約数和(自身を除く): 18913275

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 99, 103, 127, 135, 165, 297, 309, 381, 495, 515, 635, 927, 1133, 1143, 1397, 1485, 1545, 1905, 2781, 3399, 3429, 4191, 4635, 5665, 5715, 6985, 10197, 12573, 13081, 13905, 16995, 17145, 20955, 30591, 37719, 39243, 50985, 62865, 65405, 117729, 143891, 152955, 188595, 196215, 353187, 431673, 588645, 719455, 1295019, 1765935, 2158365, 3885057, 6475095, 19425285]

約数ペア:

[(1, 19425285), (3, 6475095), (5, 3885057), (9, 2158365), (11, 1765935), (15, 1295019), (27, 719455), (33, 588645), (45, 431673), (55, 353187), (99, 196215), (103, 188595), (127, 152955), (135, 143891), (165, 117729), (297, 65405), (309, 62865), (381, 50985), (495, 39243), (515, 37719), (635, 30591), (927, 20955), (1133, 17145), (1143, 16995), (1397, 13905), (1485, 13081), (1545, 12573), (1905, 10197), (2781, 6985), (3399, 5715), (3429, 5665), (4191, 4635)]